State Wholesale Grocers, an Illinois Corporation, Plaintiffs v. The Great Atlantic & Pacific Tea Company, a New Jersey Corporation

SCHNACKENBERG, Circuit Judge.

State Wholesale Grocers and Zeig-mund Wholesale Grocery Co., Inc., Illinois corporations (hereinafter referred to as plaintiff wholesalers), and a group of individual store retailers of grocery products and other related products (hereinafter referred to as plaintiff retailers), all engaged in business in the Metropolitan Area of Chicago, Illinois, sued in a class suit1 in the district court for treble damages and for injunctive relief under the Clayton Act, as amended by the Robinson-Patman Act.2 The case was tried without a jury upon the is*833sue of liability, the…